Electrospinning is a method of producing polymer fibers with diameters in the sub-micron to nanometer ranges by applying high electrostatic field. In this work PAN nanofibers are produce by electrospinning of PAN copolymer solution of different concentration ranging from 3 to 10wt%. The diameter of electrospun PAN fibers is monitored as a function controlling parameter tip to collector distance, the drum collector speed, flow rate of solution and applied voltage.The PAN nanofibers of diameter 75-1500nm have been electrospun. Electrospun fibers have been characterized by SEM, XRD, TGA & DSC...